$357 Cheap Flights from Thunder Bay (YQT) to Denver (DEN)

View $357 flight on Fri, Dec 12, 2025Opens in a new window

Popular airlines from Thunder Bay, ON (YQT-Thunder Bay Intl.) to Denver Intl. Airport (DEN)

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Cheap Flights from Thunder Bay to Denver (YQT-DEN)

Prices were available within the past 7 days and start at $357 for one-way flights and $685 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Porter Airlines
Wed, Dec 3 - Sun, Dec 7
YQT
Thunder Bay
DEN
Denver
$685 Roundtrip, found 6 days ago
$685
Roundtrip
found 6 days ago
Select Porter Airlines flight, departing Wed, Dec 3 from Thunder Bay to Denver, returning Sun, Dec 7, priced at $685 found 6 days ago
Porter Airlines
Wed, Dec 3 - Sun, Dec 7
YQT
Thunder Bay
DEN
Denver
$727 Roundtrip, found 6 days ago
$727
Roundtrip
found 6 days ago
Select Porter Airlines flight, departing Wed, Dec 3 from Thunder Bay to Denver, returning Sun, Dec 7, priced at $727 found 6 days ago
Air Canada
Sun, Mar 22 - Thu, Mar 26
YQT
Thunder Bay
DEN
Denver
$793 Roundtrip, found 1 hour ago
$793
Roundtrip
found 1 hour ago
Select Air Canada flight, departing Sun, Mar 22 from Thunder Bay to Denver, returning Thu, Mar 26, priced at $793 found 1 hour ago
Air Canada
Sun, Mar 22 - Thu, Mar 26
YQT
Thunder Bay
DEN
Denver
$817 Roundtrip, found 1 hour ago
$817
Roundtrip
found 1 hour ago
Select Air Canada flight, departing Sun, Mar 22 from Thunder Bay to Denver, returning Thu, Mar 26, priced at $817 found 1 hour ago
Air Canada
Sun, Mar 22 - Thu, Mar 26
YQT
Thunder Bay
DEN
Denver
$832 Roundtrip, found 1 hour ago
$832
Roundtrip
found 1 hour ago
Select Air Canada flight, departing Sun, Mar 22 from Thunder Bay to Denver, returning Thu, Mar 26, priced at $832 found 1 hour ago
United
Sun, Mar 22 - Thu, Mar 26
YQT
Thunder Bay
DEN
Denver
$837 Roundtrip, found 1 hour ago
$837
Roundtrip
found 1 hour ago
Select United flight, departing Sun, Mar 22 from Thunder Bay to Denver, returning Thu, Mar 26, priced at $837 found 1 hour ago
Porter Airlines
Wed, Dec 3 - Sun, Dec 7
YQT
Thunder Bay
DEN
Denver
$840 Roundtrip, found 6 days ago
$840
Roundtrip
found 6 days ago
Select Porter Airlines flight, departing Wed, Dec 3 from Thunder Bay to Denver, returning Sun, Dec 7, priced at $840 found 6 days ago
Porter Airlines
Sun, Mar 22 - Thu, Mar 26
YQT
Thunder Bay
DEN
Denver
$844 Roundtrip, found 1 hour ago
$844
Roundtrip
found 1 hour ago
Select Porter Airlines flight, departing Sun, Mar 22 from Thunder Bay to Denver, returning Thu, Mar 26, priced at $844 found 1 hour ago
Air Canada
Sun, Mar 22 - Thu, Mar 26
YQT
Thunder Bay
DEN
Denver
$850 Roundtrip, found 1 hour ago
$850
Roundtrip
found 1 hour ago
Select Air Canada flight, departing Sun, Mar 22 from Thunder Bay to Denver, returning Thu, Mar 26, priced at $850 found 1 hour ago
Air Canada
Sun, Mar 22 - Thu, Mar 26
YQT
Thunder Bay
DEN
Denver
$856 Roundtrip, found 1 hour ago
$856
Roundtrip
found 1 hour ago
Select Air Canada flight, departing Sun, Mar 22 from Thunder Bay to Denver, returning Thu, Mar 26, priced at $856 found 1 hour ago

Frequently asked questions

How much does a flight from Thunder Bay Intl. Airport (YQT) to Denver Intl. Airport (DEN) cost?
Secure a cheap one-way flight from $357 or cheap return flight from $685 from Thunder Bay Intl. Airport (YQT) to Denver Intl. Airport (DEN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Thunder Bay Intl. Airport (YQT) to Denver Intl. Airport (DEN)?
December is the least expensive month to fly from YQT to DEN. Avoiding peak travel times is often the key to finding better fares.
What is the cheapest airline that flies from Thunder Bay Intl. Airport (YQT) to Denver Intl. Airport (DEN)?
Use the filters on Expedia to compare different airlines and find the cheapest carrier that'll take you from YQT to DEN. Then, sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Thunder Bay Intl. Airport (YQT) to Denver Intl. Airport (DEN)?
There aren't any daily nonstop flights available from Thunder Bay Intl. Airport (YQT) to Denver Intl. Airport (DEN). But you can book flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be cruising above the clouds before you know it.
What day of the week has the most flights from YQT to DEN?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Just remember that flight schedules can change depending on a number of factors, including the airline and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Thunder Bay Intl. Airport (YQT) to Denver Intl. Airport (DEN)?
To land at Denver Intl. Airport (DEN) on time, select a flight that leaves from Thunder Bay Intl. Airport (YQT) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Thunder Bay Intl. Airport (YQT) to Denver Intl. Airport (DEN) last-minute?
Last-minute bookings from YQT to DEN are usually more expensive. To lock in the lowest prices, start looking for flights as early as possible. That said, if you can play around with your travel dates, you may score a cheap ticket right before you leave.
Is it cheaper to book a YQT to DEN flight and hotel package?
Compared with arranging flights and hotels separately, booking a YQT to DEN flight and hotel package with Expedia could result in significant savings. What's more, having everything in one place will take the hassle out of planning your trip. Simply pick your flights and choose from our wide range of stays, then tailor your trip with extras like tours and car rentals.
Can I cancel or change the date of my flight from Thunder Bay Intl. Airport (YQT) to Denver Intl. Airport (DEN)?
Generally, it's possible to cancel or reschedule your YQT to DEN flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find further details on our Customer Service portal.

Travel information

Origin airport
Thunder Bay Intl.
Destination airport
Denver Intl.
Roundtrip price
$684
Distance
960 mi

Book with confidence

Thunder Bay to Denver Flights

The cheapest times to fly from Thunder Bay to Denver

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Thunder Bay to Denver are during the month of December. You can find some of the cheapest flights from Thunder Bay to Denver with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Thunder Bay to Denver

Sunday is one of the best days to book for cheap flights from Thunder Bay to Denver: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Thunder Bay to Denver

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Thunder Bay to Denver in 2025. You can also book with separate airlines for your outbound and return journeys, from $357 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Thunder Bay to Denver flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Thunder Bay to Denver airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Thunder Bay to Denver Flights

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*Available to One Key members.